Clindamycin Phosphate, Adapalene, and Benzoyl Peroxide Triple Combination Gel in Canadian Patients With Acne Vulgaris
CHARM
Satisfaction, Adherence, Effectiveness, and Safety of Clindamycin Phosphate, Adapalene, and Benzoyl Peroxide Treatment in Patients With Acne Vulgaris: A Canadian Prospective Phase IV Study (CHARM)
1 other identifier
observational
200
1 country
19
Brief Summary
The goal of this observational study is to learn about the effects of a treatment that contains clindamycin phosphate, adapalene, and benzoyl peroxide in people with acne. The main questions the study aims to answer are:
- How satisfied are people with this treatment?
- How well do people follow the treatment plan?
- How effective and safe is the treatment?
- How does the treatment affect quality of life?
- How do people use other skin care products, such as cleansers, moisturizers, and sunscreen, while using this treatment? About 200 people aged 12 and older with acne across Canada will use the treatment as part of their regular care and answer questions about their experience over 20 weeks.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Oct 2025
Shorter than P25 for all trials
19 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
September 24, 2025
CompletedStudy Start
First participant enrolled
October 2, 2025
CompletedFirst Posted
Study publicly available on registry
October 3, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 1, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
August 1, 2026
April 1, 2026
March 1, 2026
10 months
September 24, 2025
March 31, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Treatment Satisfaction at Week-12 as assessed by DermSat-7
To describe treatment satisfaction of clindamycin phosphate 1.2% / adapalene 0.15% / benzoyl peroxide 3.1% gel at Week-12 in patients with acne vulgaris in Canadian routine clinical practice, using mean DermSat-7 domain scores. The DermSat-7 is a dermatology-specific, 7-item questionnaire used to assess patient satisfaction with treatment across three domains: effectiveness, convenience, and overall satisfaction. Domain scores are transformed to a linear 0-100 scale, with higher scores indicating greater satisfaction.
Week 12
Secondary Outcomes (9)
Treatment Satisfaction at Week-4, Week-8 and Week-20 as assessed by DermSat-7
Week 4, Week 8 and Week 20
Change from Baseline in Treatment Satisfaction at Week-12 as assessed by DermSat-7
Baseline and Week-12
Treatment Adherence at Week-4, Week-8, Week-12, and Week-20
From Baseline to Week-20
Treatment Effectiveness as assessed by mean change from baseline in Investigator Global Assessment (IGA) score
Baseline, Week-12, and Week-20
Treatment Effectiveness as assessed by mean Investigator Global Assessment (IGA) score
Baseline, Week-12, and Week-20
- +4 more secondary outcomes
Other Outcomes (1)
Utilization Patterns of Cleanser, Moisturizer, and Sun Protectant
From Baseline to Week 20
Interventions
Topical treatment
Eligibility Criteria
Canadian routine clinical practice
You may qualify if:
- Patients who are 12 years or older (unless minors are not permitted as per local regulations) who have been prescribed clindamycin phosphate 1.2% / adapalene 0.15% / benzoyl peroxide 3.1% gel as per the product monograph as part of routine clinical care for acne vulgaris but have not yet initiated treatment. The decision to prescribe clindamycin phosphate 1.2% / adapalene 0.15% / benzoyl peroxide 3.1% gel must be made prior to and independent of study participation.
- Patients and legally authorized representatives who are willing to provide written informed consent using an Institutional Review Board (IRB) or Independent Ethics Committee (IEC)-approved Informed Consent Form (ICF) in English or French. Patients who are less than the age of consent must sign an assent for the study and a parent, or a legal guardian must sign the informed consent.
- Patients who can read, understand, and communicate in English or French.
- Patients have completed IRB or IEC-approved baseline ePROs (DermSat-7 and HUI2) after providing consent and prior to receiving their first dose of clindamycin phosphate 1.2% / adapalene 0.15% / benzoyl peroxide 3.1% gel.
- Patients have initiated clindamycin phosphate 1.2% / adapalene 0.15% / benzoyl peroxide 3.1% gel within 5 days of signed informed consent/assent.
You may not qualify if:
- Patients who have a contraindication to clindamycin phosphate 1.2% / adapalene 0.15% / benzoyl peroxide 3.1% gel as per the product monograph:
- Patients who are hypersensitive to clindamycin phosphate, to adapalene, to benzoyl peroxide or to any ingredient in the formulation or component of the container,
- Patients with a history of regional enteritis (Crohn's disease), ulcerative colitis, or antibiotic-associated colitis, and/or
- Pregnant women and women planning a pregnancy.
- Patients who, at the time of informed consent, are clear or almost clear (Investigator Global Assessment \[IGA\] = 0 or 1) or are on current acne therapy (topical or systemic, etc.)), or undergoing procedures (e.g., laser, photodynamic therapy) that could impact study results, as per the investigator's judgement.
- Patients who have any other serious and/or uncontrolled medical condition, and/or are receiving any medical therapy, that prohibits the patient from participating as per the investigator's judgement.
- Patients who have whey protein-triggered acne, drug-induced acne, occupational acne, acne associated with hidradenitis suppurativa or synovitis, acne, pustulosis, hyperostosis, and osteitis (SAPHO) syndrome, or acne related to hyperandrogenic states including polycystic ovary syndrome (PCOS).
- Patients who have conditions that mimic acne, including rosacea, folliculitis, perioral dermatitis, demodicosis.
- Patients who are not willing or able to complete electronic patient reported outcomes (ePROs) using an electronic device.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (19)
CHARM Site 007
Calgary, Alberta, T2J 7E1, Canada
CHARM Site 001
Edmonton, Alberta, T6W 0J5, Canada
CHARM Site 017
Surrey, British Columbia, V3V 0C6, Canada
CHARM Site 012
Vancouver, British Columbia, V5Z 1H2, Canada
CHARM Site 003
Winnipeg, Manitoba, R3M 3Z4, Canada
CHARM Site 021
Hamilton, Ontario, L8P 4B4, Canada
CHARM Site 010
Markham, Ontario, L3P 1X3, Canada
CHARM Site 013
Newmarket, Ontario, L3Y 5G8, Canada
CHARM Site 022
North York, Ontario, M3B 0A7, Canada
CHARM Site 015
Ottawa, Ontario, K1V 7Z5, Canada
CHARM Site 011
Richmond Hill, Ontario, L4B 1L1, Canada
CHARM Site 016
Toronto, Ontario, M2N 3A6, Canada
CHARM Site 005
Toronto, Ontario, M4E 1R7, Canada
CHARM Site 014
Toronto, Ontario, M4W 2N2, Canada
CHARM Site 002
Toronto, Ontario, M5A 3R6, Canada
CHARM Site 019
Windsor, Ontario, N8W 5L7, Canada
CHARM Site 008
Montreal, Quebec, H1Y 3L1, Canada
CHARM Site 006
Pointe-Claire, Quebec, H9R 5M7, Canada
CHARM Site 018
Québec, Quebec, G1W 4R4, Canada
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Veronique Gaudet
Bausch Health, Canada Inc.
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 24, 2025
First Posted
October 3, 2025
Study Start
October 2, 2025
Primary Completion (Estimated)
August 1, 2026
Study Completion (Estimated)
August 1, 2026
Last Updated
April 1, 2026
Record last verified: 2026-03